windows - How to concatenate continuation lines in Perl? -

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I have a CSV file that has this type of wire: 

  ID1; Banana | Apple Oranges

and I think every time a pipe occurs at the beginning of the line, the string will be added to the previous line, the output should be like this:

< Pre> id1, banana | Apple Narrow

a pipe | ?

Post-text "itemprop =" text ">

A liner in a laugh removes the returns before pipes: 

  perl -ne '$ s = do {local $ /; & lt; & gt;} $ S = ~ s / \ n \ | / | / g; print $ s' file.csv

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